BLAKE2s, BLAKE2s fast cryptographic hash
Technical Specifications
- Hash Length:
- 256 bit (64 hex characters) - variable length supported
- Security Level:
- Very high - comparable to SHA-256
- Block Size:
- 512 bit
- Speed:
- Faster than SHA-3, SHA-256 and MD5
- Optimization:
- Optimized for 32-bit and small platforms
Usage Areas
- Digital signatures and authentication
- Data integrity verification
- Password hashing (in KDFs like Argon2)
- Small devices and embedded systems
- Alternative to SHA-256
Features
- Faster than SHA-256: Optimized performance
- Faster than SHA-3: Modern design advantages
- High security: Comparable security guarantees to SHA-256
- Flexible length: Variable hash length from 1 to 256 bits
- Keyed hashing: HMAC-like keyed hash support
- Low memory usage: Low resource requirements
Standards and References
- RFC 7693
- ISO/IEC 10118-3:2018 (BLAKE2 supplement)